44004161 has 2 divisors, whose sum is σ = 44004162. Its totient is φ = 44004160.

The previous prime is 44004157. The next prime is 44004187. The reversal of 44004161 is 16140044.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35331136 + 8673025 = 5944^2 + 2945^2 .

It is a cyclic number.

It is not a de Polignac number, because 44004161 - 2² = 44004157 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44004101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22002080 + 22002081.

It is an arithmetic number, because the mean of its divisors is an integer number (22002081).

Almost surely, 2^44004161 is an apocalyptic number.

It is an amenable number.

44004161 is a deficient number, since it is larger than the sum of its proper divisors (1).

44004161 is an equidigital number, since it uses as much as digits as its factorization.

44004161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 44004161 is about 6633.5632204721. The cubic root of 44004161 is about 353.0459618026.

The spelling of 44004161 in words is "forty-four million, four thousand, one hundred sixty-one".